/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package vip.zhenzicheng.rocketmq.api.rpc;

import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.client.log.ClientLogger;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.RequestCallback;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.logging.InternalLogger;
import org.apache.rocketmq.remoting.common.RemotingHelper;

public class AsyncRequestProducer {
  private static final InternalLogger log = ClientLogger.getLog();

  public static void main(String[] args) throws MQClientException, InterruptedException {
    String producerGroup = "please_rename_unique_group_name";
    String topic = "RequestTopic";
    long ttl = 3000;

    DefaultMQProducer producer = new DefaultMQProducer(producerGroup);
    producer.start();

    try {
      Message msg = new Message(topic,
          "",
          "Hello world".getBytes(RemotingHelper.DEFAULT_CHARSET));

      long begin = System.currentTimeMillis();
      producer.request(msg, new RequestCallback() {
        @Override
        public void onSuccess(Message message) {
          long cost = System.currentTimeMillis() - begin;
          System.out.printf("request to <%s> cost: %d replyMessage: %s %n", topic, cost, message);
        }

        @Override
        public void onException(Throwable e) {
          System.err.printf("request to <%s> fail.", topic);
        }
      }, ttl);
    } catch (Exception e) {
      log.warn("", e);
    }
    /* shutdown after your request callback is finished */
//        producer.shutdown();
  }
}
